Tried uninstall & delete folders. Also cleaned out eny entries in registry to do with Caphyon. Reinstalled AI, but still not showing in VS2010. Tried clean XpSp3 machine, install VS2010 (no SP1), then AI8.5 - works OK Tried clean XpSp3 machine, install VS2010 (no SP1), then Wix 3.5 then AI8.5 - work...